Elevator for binders.



N0. WfiJOS. Patented June 4. I90l.

' A. M. ALLEN.

ELEVATUR FOR BINDERS.

(u H d 1 [Application filed Jan. 28, 1901.)

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UNlTlED STATES PATENT OFFICE.

ALBERT MILTON ALLEN, OF PAULS VALLEY, INDIAN TERRITORY.

ELEVATOR FOR BINDERS.

SPEGIEIGrdTION forming part of Letters Patent No. 67 5,703, dated June4, 1901.

Application filed January 28,1901. Serial No. 45.036. (No model.)

To aZZ whom it may concern.-

Be it known that I, ALBERT ll/IILTON ALLEN, a citizen of the UnitedStates, and a resident of Pauls Valley, Chickasaw Nation, IndianTerritory, have invented a new and Improved Elevator for Binders, ofwhich the following is a full, clear, and exact description.

Heretofore in the construction of binders two elevator-aprons have beenemployed, and the grain has been carried up between the two.

One purpose of this invention is to do away with the top elevator-apronby providing a single apron having slats carrying teeth and in this waymaterially reduce the draft of the machine.

Afurther purpose of theinvention is to pass the apron of the elevatorover toothed wheels, the slats at the inner face of the apron beingadapted to enter the spaces between the teeth of the wheels, so that theapron is given a positive and uniform movement and will not be moved, asheretofore, by frictional contact with a smooth surface.

Another purpose of the invention is to provide means whereby the teethmay be utilized to secure the slats to the outer and inner faces of theelevator-apron and to provide fingerboards at both the top and bottomportions of said elevator-apron.

The invention consists in the novel construction and combination of theseveral parts, as will be hereinafter fully setforth, and pointed out inthe claims.

Reference is to be had to the accompanying drawings, forming apart ofthis specification, in "which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a perspective view of the improved elevator and adjacentcooperating parts. Fig. 2 is a section through one of the shaftssupporting the elevator-apron, showing the drum or wheel in end view,the said figure also representing an end view of the upper fingerboardand a portion of the drop from the finger-board to the packer of themachine; and Fig. 3 is a transverse section through a portion of theapron of the elevator and through opposing slats, illustrating themanner in which a finger is employed to secure the slats to the apron.

A represents a feed apron or platform, and at the delivery end of thisfeed apron or platform a finger-board B is supported in any suitable orapproved manner, the said board being provided with a series of slots 10in its longitudinal edge farthest removed from the feed apron orplatform. The elevator consists of an endless apron 11, which is usuallyof canvas,and outer slats 12 and inner slats 13 are correspondinglyplaced in engagement with the outer and inner faces of the said apron,as is shown best in Figs. 2 and 3. The outer slats 12 are preferablymore or less rounded at their outer faces, being flat where they bearagainst the apron, and the inner slats 13 are also flat where they bearagainst the apron;

but in their inner faces recesses or countersinks 14: are produced, andcorresponding outer and inner slats are held in position upon the apronby pins 15, which are preferably pointed and beveled at their outer endsand are provided with heads 16 of the screw type at their inner ends.These heads are made to enter the countersinks 14 and the pins arepassed through registering apertures in corresponding slats 12 and 13,said pins passing loosely through the apertures in the inner slats 18.The apertures in the outer slats 12 are threaded to receive exteriorthreads produced upon said pins, as shown in Fig. 3. In this manner thepins are held firmly in position at suitable intervals apartlongitudinally of the slats and also serve to secure the slats to theapron 11. A lower shaft 18 and an upper shaft 19 are used in connectionwith the endless apron 11 of the elevator. Upon the lower shaft 18 adrum 20 is secured, and this drum is provided with alongitudinallytoothed peripheral surface having practically rectangulargrooves 21 between the teeth, adapted to receive the slats on the innerface of the apron, and a corresponding drum 20, similarly grooved andtoothed, is secured upon the upper shaft 19 of the elevator. At

one end of the lower shaft 18 of the elevator a sprocket-wheel 22 issecured, and a similar wheel 23 is secured to the like end of the uppershaft 19. A driving-belt 24 is passed over these wheels 22 and 23, beingcarried to an engagement with any driving-pulley on the machine.

At the upper portion of the elevator a finger-board B is located,corresponding to the lower finger-board B, and from the upperfinger-board B a dropC is carried to the packer of the machine. Theteeth of the elevator pass through the slots 10 in the finger-boards,and the teeth are thus cleaned and the return stretch of the elevator isrendered free from all adhering matter and is in condition at the upperstretch to carry material upward.

A gear 24 is secured to the upper shaft 19,

and this gear meshes with a gear 25, which 7 is secured to a journal 26of a roller 27, superimposed at the top of the elevator and providedwith longitudinal series of teeth 28, the said upper roll or roller 27being so placed thatits teeth will pass between the teeth 15 on theelevator, but the teeth of the roller 27 do not touch the apron of theelevator.

The foregoing construction of an elevator will obviate the necessity ofan operator adjusting the canvas of the apron in the morning, when grainis wet from dew, and then being obliged to tighten the apron as thegrain and canvas dry. It will never be necessary to set the apron sotight that the straps and buckles rip from it, and when the improvedelevator is employed there will never be any clogging, as often occursbetween two elevator-aprons when rank green grain is treated. :If thegrain is too heavy for the improved apron to elevate, the surplus willsimply slip past the finger-board and accumulate upon the platform orapron A, from v whence it can be readily removed.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. In an elevator for binders, an endless apron,correspondingly located transverse slats upon the outer and inner facesof the apron, pins which extend through each pair of slats and theapron, extending beyond the outer faces of the outer slats, and meansfor securing the said pins in position,whereby the pins-in addition toserving as elevators bind the slats through which they pass to theapron.

2. In an elevator for binders, an endless apron, drums over which theapron passes, the drums being provided with peripheral longitudinalrecesses,correspondingslats located transversely upon the outer andinner faces of the apron, the inner slats being adapted to enter thegrooves in the said drums, the inner slats being provided withcountersinks and plain apertures connecting therewith, the outer slatshaving series of threaded apertures produced therein, and pins providedwith heads adapted to enter the counter-sinks in the inner slats andthreaded exterior surfaces adapted to enter the threaded apertures inthe outer slats, the pins extending beyond the outer faces of the outerslats, for the purpose described.

3. In an elevator for binders, the combination with an endless apron,longitudinal peripherally-grooved drums supporting the upper and lowerportions of the apron, a driving mechanism for the saiddrums,corresponding slats transversely located on the inner and theouter faces of the apron, the inner slats being adapted to enter thegrooves in the said drums, and pins extending outward throughcorresponding slats, binding them to the apron, of a feed-apron, afinger-board at the delivery end of the feed-apron, having slots thereinthrough which the pins of the elevator-apron may pass, a correspondingfin ger-board located at the upper portion of the elevator, and a rolldriven from the drive mechanism of the elevator, said roll being locatedat the upper portion of the elevator and provided with series ofperipheral teeth longitudinally arranged, adapted to enter the spacesbetween the teeth on the elevator yet not engage with the apron of theelevator, as set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

ALBERT MILTON ALLEN.

